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Analog Devices Inc. LTC1163CS8#PBF
- Part No.:
- LTC1163CS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1163CS8#PBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:191
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Product details
Overview
LTC1163CS8#PBF from Analog Devices (formerly Linear Technology) is a triple noninverting high-side N-channel MOSFET driver optimized for battery-powered systems. It operates from 1.8V to 6V supply, delivers up to 9.5V gate drive above VS at 3.3V input, draws only 0.01µA standby current per channel, and features built-in gate voltage clamps and internal charge pump-no external capacitors required. It enables efficient 2- to 4-cell portable power management in notebook and medical equipment.
For engineers reviewing the LTC1163CS8#PBF datasheet, LTC1163CS8#PBF pinout, LTC1163CS8#PBF application, or LTC1163CS8#PBF equivalent, key selection criteria include micropower operation across sub-3V logic, controlled turn-on/off timing for EMI reduction, compatibility with logic-level N-MOSFETs like RFD14N05LSM, and SOIC-8 packaging for space-constrained PCB layouts.
Technical Context
The LTC1163CS8#PBF integrates three independent noninverting driver channels, each with a self-contained charge pump that boosts gate voltage up to 9.5V above VS without external components. Input thresholds scale with supply voltage (e.g., ~1.65V at VS = 3.3V), and hysteresis (~200mV) ensures noise-immune switching.
Each channel provides controlled gate rise/fall times (e.g., 40–400µs turn-on, 20–200µs turn-off at 3.3V/1000pF load) to minimize RFI. The output pin is clamped to ~14V above ground and exhibits high-impedance behavior when driven above VS-requiring careful layout to avoid parasitic loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 6V - supports direct interface with 2–4 cell Li-ion or alkaline batteries and mixed 3.3V/5V systems. |
| Standby Current (per channel) | 0.01µA - enables multi-week shutdown mode in portable devices without compromising wake-up readiness. |
| Operating Current (per channel @ 3.3V) | 95µA typical - sustains continuous high-side switching while minimizing quiescent drain on small batteries. |
| Gate Drive Voltage Above VS | 8.0V typical @ 3.3V supply - fully enhances low-RDS(ON) logic-level N-MOSFETs (e.g., RFD14N05LSM) without P-channel trade-offs. |
| Turn-On Time (3.3V, 1000pF) | 40–400µs - adjustable via external RC network to limit inrush current into large capacitive loads (e.g., 100µF). |
| Input Logic Compatibility | Noninverting CMOS inputs with 50% VS threshold - interoperable with 3V, 5V, and sub-3V controllers without level shifters. |
| Package | 8-pin SOIC (S8) - industry-standard footprint with 1.27mm pitch, compatible with automated assembly and thermal relief design. |
Pinout & Package
Package: 8-lead plastic SOIC (S8), 3.9mm × 4.9mm body, 1.27mm lead pitch, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2, IN3 | Noninverting logic inputs | Drive corresponding outputs high when pulled to VS; high-impedance CMOS with ESD diodes to GND only. |
| GND | Ground reference | Return path for bias circuitry and logic; series 150Ω resistor recommended for reverse-battery protection. |
| VS | Power supply input | Primary supply rail (1.8–6V); powers internal oscillator, charge pump, and bias generator. |
| OUT1, OUT2, OUT3 | High-side gate drivers | Output voltage = VS + Vpump (up to 14V max clamped); high-impedance source-follower behavior requires minimal external loading. |
Key Features
| Feature | Design Value |
|---|---|
| No external charge pump components | On-chip capacitors eliminate need for external flying caps-reducing BOM count and board area by ≥3 passive parts per channel. |
| Built-in gate voltage clamp | Internal Zener limits output to ~14V above GND-protecting logic-level N-MOSFETs with ±10V VGS rating from overvoltage stress. |
| Controlled switching timing | Programmable slew rate via external RC on gate reduces EMI and prevents supply rail collapse during startup of large capacitive loads. |
| Mixed-voltage logic interface | Input ESD diodes referenced to GND (not VS) allow safe 5V TTL/CMOS drive even when powered from 3.3V-eliminating level translators. |
| Sub-3V operation support | Functional down to 1.8V supply with validated 3.5V gate boost-enables use with single LiFePO₄ or dual-alkaline cells without brownout. |
Applications
| PCMCIA Card VCC Switching | Notebook Power Management |
|---|---|
|
Use Scenario: Dynamically selecting between 3.3V and 5V VCC rails for PCMCIA card sockets based on card type detection. IC Role / Device Role / Timing Role: High-side switch controller enabling rail isolation with zero standby current during card removal. Use Value: Eliminates need for discrete P-channel switches or external charge pumps-reducing solution size and cost while maintaining TTL/CMOS compatibility. |
Use Scenario: Sequenced power enable for CPU core, I/O, and peripheral subsystems in battery-operated notebooks. IC Role / Device Role / Timing Role: Triple independent high-side driver coordinating isolated power domains with controlled ramp rates. Use Value: Prevents supply glitches during hot-plug events by limiting inrush current into 22–220µF local bypass capacitors per rail. |
| Portable Medical Equipment | Mixed-Voltage System Power Control |
|
Use Scenario: Enabling/disabling sensor modules, display backlights, and wireless transceivers in handheld diagnostic devices. IC Role / Device Role / Timing Role: Low-quiescent-current load switch ensuring >1-year shelf life in standby mode. Use Value: 0.01µA per-channel shutdown current extends battery life without sacrificing fast wake-up response (<500µs). |
Use Scenario: Managing separate 3.3V, 5V, and 12V supplies in industrial handhelds with legacy peripherals. IC Role / Device Role / Timing Role: Level-shift-free interface between 5V microcontrollers and 3.3V-powered subsystems. Use Value: Input tolerance up to 7V allows direct connection to 5V logic outputs-removing 3 level-shifter ICs and associated passives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2051BDR | Single-channel, 5V-only supply, no internal charge pump-requires external gate driver or P-MOSFET. | Not suitable for sub-3V or multi-rail systems; lacks micropower standby mode. | Choose only for fixed 5V applications where gate boost is unnecessary and channel count is ≤1. |
| MAX16056ATA+ | Triple-channel, 2.7–5.5V range, integrated charge pump, but 1.5µA standby current-150× higher than LTC1163CS8#PBF. | Unsuitable for ultra-low-power battery life targets; higher leakage compromises long-term storage. | Select only if higher operating voltage margin (5.5V max) outweighs 14.99µA standby penalty in your runtime profile. |
Compared with TPS2051BDR and MAX16056ATA+, the LTC1163CS8#PBF uniquely combines triple-channel operation, 1.8V minimum supply, 0.01µA standby, and self-contained gate boosting-making it the only option for compact, multi-rail, multi-week battery life designs.
Availability
LTC1163CS8#PBF is available at Aetrix Electronics and suitable for notebook computer power management, portable medical equipment, PCMCIA card switching, and mixed-voltage system power control requiring stable component supply across extended production cycles.
Supply support for LTC1163CS8#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC1163CS8#PBF belongs to Linear's legacy micropower power management portfolio, designed specifically for ultra-low-quiescent-current, multi-rail battery-powered systems where efficiency, size, and reliability are critical.
FAQ
What is the minimum supply voltage supported by the LTC1163CS8#PBF?
The LTC1163CS8#PBF operates down to 1.8V, enabling direct use with two alkaline cells or a single LiFePO₄ cell. At this voltage, it still delivers 3.5V gate boost above VS (typical), sufficient to fully enhance logic-level N-MOSFETs such as the RFD14N05LSM. This capability is verified across temperature and process corners per the official Linear Technology datasheet Rev. D.
Does the LTC1163CS8#PBF require external charge pump capacitors?
No, the LTC1163CS8#PBF integrates all necessary charge pump capacitors on-die. Unlike discrete driver solutions, it needs no external flying capacitors or bootstrap diodes-reducing bill-of-materials count and PCB area. This is confirmed in the "Gate Charge Pump" section of the datasheet and validated in typical application circuits TA01–TA08.
How does the LTC1163CS8#PBF handle reverse battery conditions?
The LTC1163CS8#PBF can be protected against reverse battery connection by adding a 150Ω resistor in series with either the GND or VS pin. This limits reverse current to under 24mA when –3.6V is applied, preventing damage while maintaining normal operation-verified in the "Reverse Battery Protection" application note and Figure 2 of the datasheet.
Can the LTC1163CS8#PBF drive 5V logic inputs while powered from a 3.3V supply?
Yes-the LTC1163CS8#PBF inputs have ESD protection diodes referenced to GND (not VS), allowing safe 5V logic signals to be applied even when VS = 3.3V. Input thresholds remain at ~50% of VS (~1.65V), ensuring clean switching without external level shifters-confirmed in the "Mixed 5V/3V Systems" section and Figure 2 of the datasheet.
What is the maximum gate capacitance the LTC1163CS8#PBF can drive reliably?
The LTC1163CS8#PBF is characterized for 1000pF gate load in timing specifications (e.g., tON = 40–400µs at 3.3V). While not explicitly rated beyond that, its gate drive strength supports larger loads when paired with external gate resistors to control slew rate-demonstrated in Figure 1 (powering 100µF loads) and application TA04 using RFD14N05LSM (Qg ≈ 12nC).
LTC1163CS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- High-Side
- Channel Type:
- Independent
- Number of Drivers:
- 3
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 1.8V ~ 6V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LTC1163CS8#PBF FAQ
1.How can I place an order for LTC1163CS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1163CS8#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC1163CS8#PBF reliable?
The price and inventory of LTC1163CS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1163CS8#PBF is usually 5 days.
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LTC1163CS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1163CS8#PBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC1163CS8#PBF?
For technical support, including LTC1163CS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1163CS8#PBF requirements.
6.How does Aetrix verify that LTC1163CS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1163CS8#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC1163CS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1163CS8#PBF?
All LTC1163CS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1163CS8#PBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC1163CS8#PBF part is unused and in its original packaging.
Return procedure for LTC1163CS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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